Sienna Miller Is Pregnant! Actress Expecting Her Third Baby

Sienna Miller is pregnant!

The 43-year-old actress showed off her baby bump while walking the red carpet at the Royal Albert Hall at the 2025 Fashion Awards in London, England. Miller can be seen wearing a see-through white dress over a short pair of white shorts. She wore her hair open and in waves and accessorized with large earrings.

This is the third child for Miller, who welcomed a daughter with her boyfriend Olly Green in late 2023 and is also mom to daughter Marlo, 13, who she shares with ex Tom Sturridge.

Miller’s representative did not immediately respond to PEOPLE’s request for comment.

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The actress has been dating her 28-year-old boyfriend since 2022 and has previously opened up about the “pressure” of expanding her family after turning 40.

In a 2022 interview elle ukShe broached the subject and revealed that she has frozen some of her eggs.

She shared, “[Thepressure…(about)kidsandshouldIhavemorekidsandwhydidn’tIandallthatwhichisreallyalotofnoise.Biologyisincrediblycrueltowomeninthatdecade–that’stheheadlineoritcertainlywastome.”

“Then I turned 40 and I froze some eggs. After really focusing on the need to have another baby, I just thought if it happens, it happens. That kind of existential threat is gone.”

while talking to circulation For their December 2023 cover issue, the actress opened up about having a baby later in life and said she’s not free from her insecurities.

“I would love to get to a point where I don’t feel the need to make fun of growing up and having kids,” she told the outlet. “To show I’m in on the joke.”

Last April, Miller made a rare appearance with her daughter Marlo, attending her sister Savannah Miller’s Bridal Ballerina Breakfast in London. In the photo, Miller was smiling with her lookalike daughter, both of whom opted to wear their hair long wavy.

Another photo showed Marlow, Miller and Green, who can be seen with their arms around Miller.